Here is the solution to each of the multiplication word problems from the image, along with explanations:
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1. If a mechanic repairs 5 cars each day, how many cars does he repair in a week?
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Solution:
A week has 7 days.
Cars repaired per day = 5
Total cars repaired in a week = \( 5 \times 7 = 35 \)
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Answer:
35 cars
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2. A car factory produces 6 cars every hour. How many cars are produced in 8 hours?
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Solution:
Cars produced per hour = 6
Total hours = 8
Total cars produced = \( 6 \times 8 = 48 \)
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Answer:
48 cars
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3. Each car has 4 tires. How many tires are there in total for 7 cars?
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Solution:
Tires per car = 4
Number of cars = 7
Total tires = \( 4 \times 7 = 28 \)
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Answer:
28 tires
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4. A car dealership sells 9 cars every day. How many cars does it sell in a week?
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Solution:
Cars sold per day = 9
Days in a week = 7
Total cars sold in a week = \( 9 \times 7 = 63 \)
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Answer:
63 cars
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5. A car race is 7 laps in length and each lap is 3 miles long. How many miles is the whole race?
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Solution:
Length of each lap = 3 miles
Total laps = 7
Total distance of the race = \( 3 \times 7 = 21 \) miles
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Answer:
21 miles
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6. A parking lot can hold 8 cars on each of its 6 levels. How many cars can the parking lot hold in total?
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Solution:
Cars per level = 8
Number of levels = 6
Total cars = \( 8 \times 6 = 48 \)
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Answer:
48 cars
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7. Each car in a rally uses 4 liters of fuel per mile. How many liters of fuel would a car use for a 10-mile race?
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Solution:
Fuel used per mile = 4 liters
Total miles = 10
Total fuel used = \( 4 \times 10 = 40 \) liters
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Answer:
40 liters
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8. A train transports 10 cars each trip. How many cars does it transport in 5 trips?
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Solution:
Cars transported per trip = 10
Number of trips = 5
Total cars transported = \( 10 \times 5 = 50 \)
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Answer:
50 cars
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9. A car factory has 5 production lines, and each line can produce 8 cars a day. How many cars can the factory produce in a day?
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Solution:
Cars produced per line per day = 8
Number of production lines = 5
Total cars produced per day = \( 8 \times 5 = 40 \)
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Answer:
40 cars
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10. If a car consumes 3 gallons of gas to travel 50 miles, how much gas will it consume to travel 150 miles?
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Solution:
Gas consumed for 50 miles = 3 gallons
To find gas consumption for 150 miles:
- First, determine the gas consumption per mile:
\[
\text{Gas per mile} = \frac{3}{50} \text{ gallons}
\]
- Then, calculate the gas for 150 miles:
\[
\text{Gas for 150 miles} = 150 \times \frac{3}{50} = 3 \times 3 = 9 \text{ gallons}
\]
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Answer:
9 gallons
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Final Answers:
1.
35 cars
2.
48 cars
3.
28 tires
4.
63 cars
5.
21 miles
6.
48 cars
7.
40 liters
8.
50 cars
9.
40 cars
10.
9 gallons
Boxed Final Answer:
\[
\boxed{35, 48, 28, 63, 21, 48, 40, 50, 40, 9}
\]
Parent Tip: Review the logic above to help your child master the concept of multiplication problem solving worksheet.
